High-precision time synchronization system and method based on GPS, BD and rubidium atomic clock

The invention discloses a high-precision time synchronization system and method based on GPS, a BD and a rubidium atomic clock. The high-precision time synchronization system comprises a satellite time signal source module, a satellite time signal processing module, a main control module and an atomic clock synchronous adjusting module. The satellite time signal source module is connected with thesatellite time signal adjusting module and used for receiving satellite time information and sending the satellite time information to the signal processing module; the satellite time signal processing module is used for processing the received satellite time information, parsing the satellite time information and corresponding second pulses, and sending the satellite time information and the corresponding second pulses to the main control module; the main control module is used for sending the received satellite time information and the corresponding second pulses to the atomic clock synchronous adjusting module; th